From patchwork Thu Nov 9 16:34:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13451540 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A93F6C05031 for ; Thu, 9 Nov 2023 16:40:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=G1b7gE36i2MSU0PCeXSe+XGipHujagGMlwp5Z/3wZh4=; b=xb6tNBaFUml/Ch mvsfPjjenfbbv/pJ2f89FXRzyu68PBw6qpF3qtpUET+DzPpzfdnr/R/VJSTcZzV9BsOuizJybrCPT FV/AmHpQc3/bsTpd+bV46UbFUaL6xBhlwZQtmYRJfvIYm7H4Ie96ks4UYs8BKyVqp/Jg4NjaC4v23 YCNSP+N1To9zGtFMOqEc6/KuYEw88adTZm+Qtg1tcIhRlFA03MQbQsmGOY9y7YvmKcnx1snRpgQ0i FPoqZ9GOQQONmPUhR0iIL4rd2CqQmzXc6jZ027fTd7GoCRv9EGAqljW0oHFhfQG7B0N3H+/zwTzuT mcsO0miaF5IQpYv5BH8g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r184S-006nQ5-0o; Thu, 09 Nov 2023 16:39:56 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r1830-006loZ-2W; Thu, 09 Nov 2023 16:38:29 +0000 Received: from benjamin-XPS-13-9310.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id 8DA9B6607421; Thu, 9 Nov 2023 16:38:24 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1699547905; bh=aF5IbNMnW5bzQpY31akTbqKQeSuvyqM5DVbbfQGqSG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NXR8B386aaUFbWGbiZLt/MV4badGkLThiUspY89i2hDwgJXKwm9bbwBQXT031S8gT qdj4ZVbirRaVXYbgYvv8HzuFT0QR4xJLlBJFnFmJeFkGy2hwWH21EhWuFPPj8UeaMu CGZxutsWPVKMSmV9mTlJ6lYJAWAhwuKMeEwDGSkj/iQfACDUl/POdLwfTG3Zad4YwO erVthdcOn4MS+SjbHUIrOZSeujiuZa9F13/WvjX7Q5UoMUQfzgQUG84bQYgKqKfn8V nYWtl8eFOAWbpmvmdw1/CxdRwTUm+naWMxOufpjkp9VtWsX1Nm5BH7/8aJRO6geS9x S5Zf2qMZQNuAw== From: Benjamin Gaignard To: mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com, ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard , Andrzej Pietrasiewicz Subject: [PATCH v15 40/56] media: usb: cx231xx: Stop direct calls to queue num_buffers field Date: Thu, 9 Nov 2023 17:34:56 +0100 Message-Id: <20231109163512.179524-41-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231109163512.179524-14-benjamin.gaignard@collabora.com> References: <20231109163512.179524-14-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231109_083826_979060_83B5FE34 X-CRM114-Status: GOOD ( 11.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use vb2_get_num_buffers() to avoid using queue num_buffers field directly. This allows us to change how the number of buffers is computed in the future. Signed-off-by: Benjamin Gaignard Reviewed-by: Andrzej Pietrasiewicz --- drivers/media/usb/cx231xx/cx231xx-417.c | 5 +++-- drivers/media/usb/cx231xx/cx231xx-video.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c index fe4410a5e128..45973fe690b2 100644 --- a/drivers/media/usb/cx231xx/cx231xx-417.c +++ b/drivers/media/usb/cx231xx/cx231xx-417.c @@ -1218,12 +1218,13 @@ static int queue_setup(struct vb2_queue *vq, { struct cx231xx *dev = vb2_get_drv_priv(vq); unsigned int size = mpeglinesize * mpeglines; + unsigned int q_num_bufs = vb2_get_num_buffers(vq); dev->ts1.ts_packet_size = mpeglinesize; dev->ts1.ts_packet_count = mpeglines; - if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF) - *nbuffers = CX231XX_MIN_BUF - vq->num_buffers; + if (q_num_bufs + *nbuffers < CX231XX_MIN_BUF) + *nbuffers = CX231XX_MIN_BUF - q_num_bufs; if (*nplanes) return sizes[0] < size ? -EINVAL : 0; diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c index e23b8ccd79d4..c8eb4222319d 100644 --- a/drivers/media/usb/cx231xx/cx231xx-video.c +++ b/drivers/media/usb/cx231xx/cx231xx-video.c @@ -714,11 +714,12 @@ static int queue_setup(struct vb2_queue *vq, unsigned int sizes[], struct device *alloc_devs[]) { struct cx231xx *dev = vb2_get_drv_priv(vq); + unsigned int q_num_bufs = vb2_get_num_buffers(vq); dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3; - if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF) - *nbuffers = CX231XX_MIN_BUF - vq->num_buffers; + if (q_num_bufs + *nbuffers < CX231XX_MIN_BUF) + *nbuffers = CX231XX_MIN_BUF - q_num_bufs; if (*nplanes) return sizes[0] < dev->size ? -EINVAL : 0;